# About Parallel and Perspective Views

You can create realistic visual effects in a drawing by defining either parallel

or perspective projections of a model.

The difference between perspective views and parallel projections is that perspective

views require a distance between a theoretical camera and target point. Small distances

produce severe perspective effects; large distances produce mild effects.

A perspective view remains in effect until the perspective effect is turned off or

until a new view is defined in its place.

The following illustration shows the same model in both a parallel projection and

perspective projection. Both are based on the same viewing direction.

## Define Parallel Projections

To determine the point or angle in model space, you can

- Choose a preset 3D view from the View toolbar.
- Enter a coordinate or angles that represent your viewing location in 3D.
- Change to a view of the
*XY*plane of the current UCS, a saved UCS, or the WCS. - Change the 3D view dynamically with your pointing device.
- Set front and back clipping planes to limit the objects being displayed.

Viewing in 3D is available only in model space. If you are working in paper space,

you cannot use 3D viewing commands such as VPOINT, DVIEW, or PLAN to define paper

space views. The view in paper space is always a plan view.

u can create realistic visual effects in a drawing by defining either **parallel** or **perspective** projections of a model. The difference between **perspective views** …perspective views and **parallel** projections is that **perspective views** require a distance between a theoretical camera and target point.parallel projection is a projection of an object in three-dimensional space onto a fixed plane, … **Parallel** projections can be seen as the limit of a central or **perspective** projection, in which the rays pass through …. dimetric and trimetric projection, depending on the exact angle at which the **view** deviates from the orthogonal.Perspective in the graphic arts is an approximate representation, generally on a flat surface … Any **perspective** representation of a scene that includes **parallel** lines has one or ….. A zero-point **perspective view** is equivalent to an elevation.perspective views and **parallel** projections is that **perspective views** require a distance between a theoretical camera and target point.… **Parallel** vs **Perspective** Projection Drawing is a visual art that has been used by man for self-expression throughout history. It uses pencils, pens …Parallel – distance from COP to PP infinite. **Perspective** vs. **parallel** projections. **Perspective** projections pros and cons: + Size varies inversely with distance – …view, clipping and **perspective** can be memorized independently and recalled from the user-defined list at any time. Each **view** retrieved in this …Parallel projection discards z-coordinate and **parallel** lines from each vertex on the object are extended until they intersect the **view** plane. In **parallel** … The following figure shows all the three types of **perspective** projection −. Three Types of …… **Perspective** of lines **parallel** to the picture plane will have no vanishing … The method of drawing **perspective view** by vanishing point method is …